So I updated to v1.2.6 on my P3P and I regret doing it. Machine immediately gave me an IMU error after the update, so I calibrated the compass. Then I went to fly it and it will not stay in one spot like it used to. GPS mode is useless. Then I sent it up to 40' and it reported a sonar problem and told me to land as soon as possible. So I did. I recalibrate again and did a short flight. After a manual lift-off, I used to be able to let go of the sticks and it would immediate stop and hover. Now, it just keeps going up. It drifts everywhere now. Again, like GPS mode doesn't work. I used to love my Phantom 3 but now it's untrustworthy. Thanks DJI. Anybody else seeing this issue?